TM 10-4510-206-144-14.WATER HEATER MAINTENANCE PROCEDURES (CONTD)f .ManifoldConnectionsandFittings.Repair the manifold fittings byreplacing them if they are broken or otherwise become unfit for use.1.Turn off power limit switch (1) and disconnect power cable (2).WARNINGHot water under pressure is present in the waterheater.Do not attempt to work on plumbing until thewater heater cools down.2.Allow hot water temperature to cool before proceeding.4-88